Comfort dehumidifier TTK 33 E
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Comfort dehumidifier TTK 33 E

2-in-1 design dehumidifier for controlled improvement of air quality and dry keeping of humid rooms with hygrostat control

Dries, dehumidifies and indicates the humidity level

Declare war on unhealthily humid room air in your personal environment. The modern TTK 33 E dehumidifier in an appealing cube-shaped design puts an end to high humidity levels in rooms. As a mobile dehumidifier with a practical carrying handle, it improves the air quality and provides a better room climate for your well-being or for working. A hygrostat-controlled automatic dehumidification system reduces the room humidity in living and business rooms, offices, shops, unheated conservatories, basements and garages to a target value that can be preset to a value within the relative humidity range of 30 % to 80 %. With a sound level of only 43 dB(A), the dehumidification function is pleasantly quiet even at the highest of the two selectable fan speeds. For this reason, the TTK 33 E can also be recommended for use in the bedroom or at the workplace without impairing sleep or work.

Optimally regulated humidity level for healthy living and working

Optimally regulated room humidity in the range of 40 to 60 % effectively prevents the formation of mould and moisture accumulations and reduces the growth of allergens and dust mites. In addition, the removable and easy-to-clean air filter filters floating dust and pet hair out of the room air. An activated carbon filter to remove more intense odours in living spaces is optionally available as an accessory.

With a dehumidification performance of up to 14 l / 24 h and a 1.5 litre water tank with overflow protection, the living space-friendly TTK 33 E is recommended for keeping medium room sizes up to 15 m² or 37 m³ dry. To give a few examples, the device allows you to dehumidify wet basements, garages or storage rooms – without you having to be there or having to worry about the filling level of the water tank. This is made possible thanks to the hose connection at the back of the portable dehumidifier. This permanent connection allows you to conveniently drain the condensate withdrawn from the air into a drain via the condensation drain hose included in the scope of delivery.

The most beautiful way to show greatness with comfort and performance

User comfort is not a question of size – this is proven by the extremely compact and living space-friendly design dehumidifier TTK 33 E with outstanding features of this device class. The colour LED display integrated in the water tank is equally practical and informative to indicate the status of the room humidity level in three colours (blue, green, red). The LED illuminated segment display keeps you informed about the current humidity with percent accuracy, the preset target humidity and the remaining operating hours (with activated 24-hour timer) for time-controlled switch-on or switch-off.


Moisture in the bathroom, basement or bedroom can lead to mold. All relevant information about our comfort dehumidifiers can also be found in the product brochure. Download the PDF directly here.

To the PDF document

Gentle laundry drying with dehumidifiers

Apart from ambient air dehumidification, a dehumidifier can be conveniently used for drying laundry – either in an assisting way or as a full replacement for a conventional dryer. The laundry drying function (also referred to as clothes drying mode or SuperDry function) is comparable to traditional air drying outside.

Dehumidifiers offer the benefit of drying the laundry as gently as in the nature outside. Colours retain their brilliance and the life span of clothes is longer than with conventional dryers – and all this with a substantially lower power consumption.

Furthermore, even sensitive materials such as wool, silk or synthetic fibres can be dried without any problems. In contrast to pure air drying, the laundry feels much softer and more pleasant on your skin.

Laundry drying can also be performed with dehumidifiers without an additional laundry drying function. The target value of the air humidity must then be set in accordance with the desired residual humidity:

Cupboard dry: 46 % of relative air humidity

Iron dry: 58 % of relative air humidity

Skin dry: 65 % of relative air humidity

Laundry-drying function
Environmentally friendly refrigerant R290

Propane (R290) as environmentally friendly refrigerant in dehumidifiers

Every year, several million tonnes of environmentally harmful CO2emissions (greenhouse gases) are emitted into the air by synthetic refrigerants. For this reason, the utilization of alternative refrigerants has become one of our key objectives. By using propane (R290) as refrigerant, this dehumidifier makes a valuable contribution to protecting our climate.

The natural refrigerant propane (R290) is an organic compound belonging to the group of hydrocarbons. Unlike synthetic refrigerants the environmentally friendly propane (R290) comes with neither ozone depletion potential (ODP = 0) nor a noteworthy greenhouse effect (GWP = 3).

Additional bonus for the environment: Owing to its excellent thermodynamic properties, propane (R290) is a particularly energy-efficient refrigerant thereby additionally reducing your energy costs.

Seeing the room air with different eyes

We cannot tell from the room air whether it is too humid or too dry by simply looking at it. Once mould spores are suspended in the air which will – in the worst case – lead to respiratory symptoms or allergic reactions, it is too late. If this is the case, the humidity has already spread over a longer period of time and has affected our well-being without us taking notice.

The TTK 33 E room dehumidifier notices what we don’t. Its precise humidity sensor continuously measures the room humidity level in order to regulate it fully automatically to the desired target range in automatic mode. The front colour LED display for the current room humidity is particularly convenient:

Colour LED display showing the current humidity level
  • Blue: Indicates that the humidity is too low/dry (below 40 %).
  • Green: Indicates an optimum humidity level (between 40 to 60 %).
  • Red: Indicates that the humidity is too high (above 60 %).
Auto restart function

Auto restart function

In case of an unexpected switch-off due to a power interruption, the auto restart function (or “Memory function”) makes the device restart with the previously selected setting as soon as the power supply has been restored. This makes the dehumidifier also suitable for combined use with a timer.

Suitable for permanent dry keeping

One of the most common causes of wet basements, wet rooms and washrooms is the condensation of water on the walls, whether because the water penetrates the basement from the outside through insufficiently sealed masonry. Or because the ventilation condition is not sufficient to lead moisture from the shower, washing machine or dryer to the outside. The TTK 33 E is equipped with a continuous operation mode for keeping rooms dry permanently. In this operating mode, the room air is permanently dehumidified to the maximum and kept dry without a preset target humidity value.

The intelligent way to plan

There are good reasons to switch the TTK 33 E dehumidifier on or off after a preset number of hours A dehumidifier in the bedroom promotes a restful room climate. However, it is not necessary to keep the device running around the clock. During sleep, we release a lot of moisture into the air by way of breathing and transpiration. For this reason, dehumidification at night has an immediate positive effect on the air humidity, whereas dehumidification is usually not necessary during the day. For such applications, the TTK 33 E is equipped with a convenient 24-hour timer. This allows you to preset the number of hours until automatic switch-on or switch-off in increments of 1 hour. This way, the TTK 33 E accompanies you when falling asleep in the evening, and terminates its services fully automatically the next morning when you leave the room.

An all-round clean affair – inside and out

For the unlikely event that you would like to pause using the TTK 33 E and its living space-improving air optimisation, you can benefit from the practical self-cleaning function for drying the interior of the space-saving dehumidifier. Then just store the device away in the cupboard. Pretty smart!

The TTK 33 E comfort dehumidifier improves the air quality and keeps the room humidity level constantly in the optimum range. Thanks to the 3-colour LED display, you can always keep an eye on the humidity level of the room air. With its dark grey colour accents, it also blends stylishly into any living environment.

TTK 33 E – special equipment features

TTK 33 E – colour LED display
Design and functions: The colour LED display indicates the status of the current room humidity. The LED is blue when the room humidity falls below 40 %. It is green when the humidity ranges between 40 - 60 %. Red means the humidity has increased to above 60 %.
TTK 33 E – colour LED display
The colour LED display indicates the status of the current room humidity. The LED is blue when the room humidity falls below 40 %. It is green when the humidity ranges between 40 - 60 %. Red means the humidity has increased to above 60 %.
TTK 33 E – colour LED display
The colour LED display indicates the status of the current room humidity. The LED is blue when the room humidity falls below 40 %. It is green when the humidity ranges between 40 - 60 %. Red means the humidity has increased to above 60 %.
TTK 33 E – control panel
The control panel of the TTK 33 E is provided with a clear design and is easy to understand. The digital display shows you the current value of the relative humidity in the room, the preselected humidity value and the set number of hours of the timer.
TTK 33 E – filter
The easily removable air filter retains lint and animal hair and can be quickly and easily wiped or washed out. An activated carbon filter can also be ordered as an optional accessory. For keeping perfect order when storing the device, the cable can be wound up at the back and fastened in the “connector storage space”.
TTK 33 E – water tank
The removable water tank has a storage capacity of 1.5 litres. The device stops automatically when the tank is full and indicates this via LED. In order to continuously drain the condensation water, a pipe can be connected on the rear of the device.
TTK 33 E comfort function
In hygrostat-controlled automatic operation, the TTK 33 E operates continuously until the set relative humidity reaches the range from 30 and 80 %, after which the compressor switches off automatically. When the target value is exceeded again, the device is automatically activated. The dehumidifier is also equipped with a practical self-drying function for storage.
TTK 33 E timer function
Use the practical timer function to switch the device on or off after a defined number of hours. The time can be programmed in increments of 1 hour (1 to 24 h). The use of the timer prevents unnecessary operating periods and allows you to adapt the dehumidification to your individual rhythm of life.
TTK 33 E – laundry drying function
The TTK 33 E may also be used as a room air laundry dryer to dry wet laundry in living spaces or utility rooms. In this way, you speed up the drying process of the clothes and prevent the humidity contained on the clothes from condensing in the room and from becoming a hotbed for mould.
TTK 33 E – permanent mode
In the permanent mode, the TTK 33 E dehumidifies the room air in continuous operation. This is especially suitable for cellar or storage spaces which are subjected to mould formation by excess humidity. To avoid that you constantly have to drain the water tank, a condensate drain hose can be connected.

TTK 33 E in the bedroom
Whether at home, in the office or in the bedroom – the TTK 33 E dehumidifier ensures an optimal room climate at all times thanks to its hygrostat-controlled automatic mode, relative humidity display, laundry drying function and timer function.
TTK 33 E in the bathroom
In order to prevent the formation of unwelcome mould that is dangerous to your health in bathrooms, hobby rooms or on cool corners and walls exposed to dampness in the first place, we recommend to use a dehumidifier continuously in due time.
Technical data by comparison

All TTK dehumidifiers in direct comparison:

To find the dehumidifier which exactly meets your requirements, please consult the concise overview of all TTK dehumidifiers from Trotec, which we're providing to you here so that you can compare them directly to each other.

Models which you do not wish to include in your comparison can be easily dismissed with only one click.

Technical data by comparison

A few practical benefits:

  • Hygrostat-controlled automatic dehumidification system with target value preselection between 30 and 80 % RH in steps of 5 %
  • When the desired humidity level is reached, the compressor switches off automatically. The fan keeps running. The display does not switch off. When the value is exceeded, the device is automatically activated.
  • Automatic operation
  • Colour LED display showing the current humidity level
  • Indication of the relative humidity level
  • Laundry-drying function
  • Timer function
  • Self-cleaning function
  • Auto restart function (Memory function)
  • Easily accessible air filter, easy to clean. Filters animal hair, fluff, lint, dust as well as preventing bacterial growth.
  • Activated carbon filter can be ordered as an accessory
  • Automatic air circulation defrost system
  • Connection for external condensate drain
  • 2 fan stages
  • Filling level warning light to indicate a full water tank
  • Overflow protection with automatic switch-off
Room size suitability of the TTK 33 E

Which device to use for which room size?

Here you find a specific performance chart for the suitability of each comfort dehumidifier. It indicates the room size in combination with an area and volume scale.
Click to enlarge in a new window ...

Product finder for dehumidifiers

We help you find the suitable dehumidifier that meets your requirements!

With our product finder you can quickly and easily choose the ideal dehumidifier for your application scenario.
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Steckdosen-Hygrostat BH30 mit Luftentfeuchter TTK 33 E

Save electricity and money on dehumidification

With our socket hygrostat BH30 you can additionally save money when dehumidifying damp rooms or keeping rooms dry. The programmable switch is simply plugged in between the dehumidifier and socket to regulate the dehumidification process based on the measured humidity level.

Once the desired target humidity is reached, the hygrostat disconnects the device from the mains until dehumidification is required again. By switching off the compressor and fan during standby times, the device's energy consumption is noticeably reduced.

The initial acquisition costs of the BH30 will have been amortized in a minimum of time.

Moreover, many dehumidifiers only offer rough target value setting for optimum humidity. The hygrostat BH30 allows the room humidity level to be adjusted in increments of 1 % from 20 % to 90 % and thus offers significantly more precise target humidity selection.

Thermohygrometer BZ05 and design weather station BZ06

Our recommendation for climate control:

The room thermohygrometer BZ05
Simultaneous display of room temperature, humidity level and time or date as well as an additional feel-good indication.

The design weather station BZ06
Simultaneous indication of room temperature, humidity level, date, time, weekday and symbolic weather forecast. Supplies helpful information for preventing mould growth.

Adsorption, condensation or Peltier dehumidifier?

Trotec, your dehumidification expert, has compiled the most important facts in a reader-friendly overview!

Direct link to “Practical knowledge of dehumidifiers” …


Comfort dehumidifier TTK 33 E show in Trotec online shop

Technical data

Technical data
General information
  Article number
Dehumidification performance
  At 30 °C / 80 % RH [l/24h] 12
  Max. [l/24h] 14
Air flow rate
  Level Max. [m³/h] 80
Recommended room size construction drying
Recommended room size dry keeping
Ambient conditions
  Min. temperature range [°C] 5
  Max. temperature range [°C] 32
  Min. humidity range [% r.F.] 30
  Max. humidity range [% r.F.] 80
Electrical values
  Mains connection 220 - 240 V, 50 Hz
  Nominal current consumption [A] 1.3
  Power input [kW] 0.24
  Recommended fusing [A] 10
Electric connection
  Connection plug CEE 7/7
  Cable length [m] 1.7
  Reciprocating piston compressor
  Rotary piston compressor
  Minimum room size [m²] 4
  refrigerant R290
  Amount of refrigerant [g] 52
  GWP factor 3
  CO2 equivalent 0.00016
  Pressure suction side [MPa] 0.8
  Pressure outlet side [MPa] 2.8
Water tank
  Contents in [l] 1.5
Sound values
  Distance 1 m [dB(A)] 43
  Length (packaging excluded) [mm] 205
  Width (packaging excluded) [mm] 270
  Height (packaging excluded) [mm] 420
  (packaging excluded) [kg] 10
Equipment, features and functions
Automatic defrost system
  Air circulation / electronic
  Hot gas
Automatic dehumidification
  stages 2
Condensate tank monitoring
  Container available
  Filling level warning light to indicate a full water tank
  Overflow protection with automatic switch-off
Room air filter
  Readily accessible
  Pre-filter Synthetic fibre
Timer function
  Switch-on time preselectable
  Switch-off time can be preselected
Functions and features
  Automatic operation
  Continuous operation
  Laundry drying function
  Operating control lamp
  Internal drying function
  Indication of the current room humidity level
  Anzeige der eingestellten Luftfeuchtigkeit
  Automatic fault diagnosis system
  Memory function
  Auto restart function
  Cable holder
Operating hours counter
  Operating hours counter
  Power meter
  Carry/transport handle(s)
Condensate drain
  Hose connection possible
  Hose included in the scope of delivery
  Recommended hose size [mm] 10
  Condensate pump
Control panel
  LED display
Housing design

 standard equipment

 optionally available

 not available



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